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Texas Instruments TPS61041DRVT
- Part No.:
- TPS61041DRVT
- Manufacturer:
- Texas Instruments
- Category:
- LED Drivers
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
TPS61041DRVT.pdf
- Description:
- IC LED DRV RGLTR PWM 215MA 6WSON
- Quantity:
- Payment:
- Shipping:
Inventory:6,284
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Product details
Overview
TPS61041DRVT from Texas Instruments is a high-frequency, low-quiescent-current DC-DC boost converter optimized for LCD bias and white-LED backlight supplies in space-constrained portable devices. It operates from 1.8V to 6V input, delivers up to 28V output, features 250mA internal switch current limit, 28μA typical no-load quiescent current, and supports up to 1MHz switching frequency using ceramic or tantalum output capacitors.
For engineers reviewing the TPS61041DRVT datasheet, TPS61041DRVT pinout, TPS61041DRVT application, or TPS61041DRVT equivalent, this page provides verified functional identity, WSON-6 package mapping, confirmed thermal metrics (RθJA = 83.0°C/W), real-world efficiency curves at 2.4V/3.6V/5V inputs, and validated alternative options for low-power boost conversion in battery-powered displays.
Technical Context
The TPS61041DRVT implements pulse-frequency-modulation (PFM) with constant peak-current control, enabling high efficiency across light-to-moderate loads without external compensation. Its 250mA current limit (vs. 400mA in TPS61040) reduces output ripple and permits smaller inductors-e.g., 10μH Sumida CR32-100 or Murata LQH3C100K24-while maintaining stable discontinuous conduction mode (DCM) operation.
It integrates undervoltage lockout (1.5V threshold), internal soft-start (two-step current ramp), thermal shutdown (168°C trip, 25°C hysteresis), and a precision 1.233V feedback reference with ±2.0% tolerance over temperature. The device requires no external loop compensation and achieves >85% efficiency at 10mA load with 2.4V input and 18V output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 1.8V to 6V - supports single-cell Li-ion (2.7–4.2V), dual-cell NiMH/NiCd (2.4–3.0V), or 3.3V/5V rails. |
| Output Voltage Range | Adjustable up to 28V - set via external resistor divider; enables LCD bias (15–25V) and white-LED strings (18–22V). |
| Switch Current Limit | 250mA (typical) - lower than TPS61040's 400mA, reducing ripple and allowing smaller inductors for <30mA applications. |
| Quiescent Current | 28μA (typical) - enables >1000-hour standby in coin-cell or low-capacity battery systems without significant drain. |
| Shutdown Current | 1μA (typical) - ensures near-zero system leakage when EN pin is grounded. |
| Switching Frequency | Up to 1MHz - permits use of compact 2.2–10μH inductors and 1–4.7μF ceramic input/output capacitors. |
| Feedback Reference | 1.233V (±2.0%) - sets output voltage as VOUT = 1.233 × (1 + R1/R2); enables precise regulation under varying load/temperature. |
Pinout & Package
TPS61041DRVT is housed in a thermally enhanced 2mm × 2mm × 0.8mm WSON-6 package (DRV) with an exposed thermal pad soldered to ground for improved heat dissipation (RθJB = 52.9°C/W). The 6-pin layout supports compact PCB layout and efficient thermal management in handheld designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 2) | Power input | Accepts 1.8–6V supply; requires 4.7μF low-ESR ceramic capacitor placed within 2mm of pin for stability. |
| SW (Pin 6) | Switch node | Connects to inductor and Schottky diode anode; carries pulsed 250mA peak current; must be routed short and wide. |
| FB (Pin 4) | Feedback input | Senses output voltage divider; 1μA bias current allows high-impedance dividers (e.g., 2.2MΩ/160kΩ for 18V). |
| EN (Pin 3) | Enable control | Active-high logic input; pull to GND for shutdown (ISD ≈ 1μA); must not float-requires 100kΩ pull-down if unused. |
| GND (Pin 1) | Ground reference | Primary return path; connects to thermal pad; must be tied to solid ground plane for EMI and thermal performance. |
| NC (Pin 5) | No connection | Internally unconnected; left floating or tied to GND per layout best practice-no electrical function. |
Key Features
| Feature | Design Value |
|---|---|
| PFM peak-current control | Enables inherent stability without external compensation; maintains >80% efficiency from 0.1mA to 30mA load. |
| Integrated soft-start | Two-stage current ramp (ILIM/4 → ILIM/2 → full) prevents input rail sag during startup in battery-powered systems. |
| Low-noise feedback architecture | Supports feedforward capacitor (CFF) on FB divider to suppress double-pulsing and reduce output ripple by ≥30%. |
| Thermal shutdown with hysteresis | Turns off MOSFET at 168°C junction temp; restarts at ~143°C-protects against sustained overload in sealed enclosures. |
| UVLO with 1.5V threshold | Prevents erratic operation below battery brownout; ensures clean start-up only when VIN exceeds safe operating margin. |
Applications
| LCD Bias Supply | White-LED Backlight |
|---|---|
|
Use Scenario: Powering gate-on/gate-off voltages (VGH/VGL) in small-to-medium TFT-LCD panels used in PDAs and handheld PCs. IC Role / Device Role / Timing Role: Generates stable, adjustable 18–25V outputs from 3.3V or single-cell Li-ion input; regulates via FB pin with <±2% accuracy. Use Value: Enables compact, low-ripple bias rails using only one 10μH inductor and two 0805/1206 capacitors-reducing BOM count by 40% vs. discrete charge-pump solutions. |
Use Scenario: Driving parallel white-LED strings (3–5 LEDs) in digital still cameras and internet audio players. IC Role / Device Role / Timing Role: Provides constant-voltage output (18–22V) with tight line/load regulation (<0.15%/mA) to maintain uniform LED brightness across battery discharge. Use Value: Delivers >85% efficiency at 10mA load with 2.4V input-extending runtime by 2.3 hours vs. linear regulators in 200mAh Li-ion systems. |
| Digital Still Camera | Handheld Industrial Scanner |
|
Use Scenario: Supplying high-voltage flash charging circuitry and CCD/CMOS sensor bias in compact digital cameras. IC Role / Device Role / Timing Role: Generates 20–28V from 3.3V main rail; uses PFM control to minimize noise coupling into analog imaging paths. Use Value: Achieves <15mVPP output ripple with 22pF CFF and 1μF X7R output cap-preventing image noise artifacts during exposure. |
Use Scenario: Providing regulated 12–15V for laser diode drivers and photodiode amplifiers in ruggedized barcode scanners. IC Role / Device Role / Timing Role: Operates reliably across –40°C to +85°C ambient; maintains regulation despite 100mA pulsed loads from scanning bursts. Use Value: Leverages 83.0°C/W RθJA and thermal pad to sustain 12V@25mA output without derating-even in sealed plastic housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS61040DRVT | 400mA switch current limit, higher RDS(on) (600–1000mΩ), same WSON-6 package and pinout. | Better suited for higher-output-power LED strings (>20mA) or faster transient response; increases output ripple by ~25% at same load. | Select TPS61040DRVT only when >25mA continuous output current is required; otherwise TPS61041DRVT offers superior ripple/noise performance. |
| MAX17062ETA+ | 28V max output, 200mA switch limit, 2.5V–5.5V input, 1.5MHz max fSW, different 8-pin μMAX package. | Requires external compensation; lacks integrated soft-start; higher quiescent current (45μA) limits ultra-low-power use. | Choose MAX17062ETA+ only if 1.5MHz operation or tighter input range is mandatory; TPS61041DRVT provides better integration and lower IQ for battery life. |
Compared with TPS61040DRVT and MAX17062ETA+, the TPS61041DRVT delivers optimal trade-off between low-noise operation, minimal external component count, and ultra-low quiescent current-making it the preferred choice for space- and power-constrained display bias applications where output stability and standby duration are critical.
Availability
TPS61041DRVT is available at Aetrix Electronics and suitable for LCD bias supply, white-LED backlighting, digital still camera power, and handheld industrial scanner designs requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS61041DRVT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management ICs, with over 90 years of innovation in energy-efficient electronics.
The TPS6104x family was designed specifically for low-power, high-voltage boost conversion in portable displays-addressing the need for compact, efficient, and reliable bias supplies in battery-operated LCD and LED systems.
FAQ
What is the maximum output voltage supported by the TPS61041DRVT?
The TPS61041DRVT supports an adjustable output voltage range up to 28V, set via an external resistor divider connected to the FB pin. This capability enables direct generation of LCD panel bias voltages (e.g., 18V–25V) and white-LED string supplies without additional regulation stages. The internal 1.233V reference and ±2.0% tolerance ensure accurate output setting across temperature and load conditions.
Does the TPS61041DRVT require external compensation components?
No, the TPS61041DRVT does not require external compensation components. Its pulse-frequency-modulation (PFM) architecture with constant peak-current control provides inherent stability across the full load range. This eliminates the need for loop compensation networks, simplifying design and reducing bill-of-materials cost-especially beneficial in space-constrained portable applications where PCB area is at a premium.
How does the TPS61041DRVT achieve low output voltage ripple?
The TPS61041DRVT achieves low output voltage ripple through its 250mA current limit (lower than TPS61040's 400mA), which reduces inductor current swing, and via optional feedforward capacitor (CFF) placement across the upper FB divider resistor. With a properly sized CFF (e.g., 22pF), ripple drops below 15mVPP at 10mA load-critical for noise-sensitive analog circuits like CCD sensors and precision bias rails.
Can the TPS61041DRVT operate from a single-cell alkaline battery?
Yes, the TPS61041DRVT can operate from a single-cell alkaline battery (1.5V nominal, 0.9–1.6V discharge range) when paired with its undervoltage lockout (UVLO) threshold of 1.5V. However, reliable startup occurs only above ~1.7V; for full 1.8–6V specification compliance, a fresh alkaline cell or NiMH (1.2V nominal, 1.4V initial) is recommended. Efficiency remains >75% down to 1.8V input at light loads.
What thermal performance can be expected from the TPS61041DRVT in WSON-6 package?
In its WSON-6 (DRV) package, the TPS61041DRVT achieves a junction-to-board thermal resistance (RθJB) of 52.9°C/W and junction-to-ambient (RθJA) of 83.0°C/W when the thermal pad is soldered to a 1-in² copper pour. At 25mA output and 3.3V input, junction temperature rise stays below 35°C-well within the –40°C to +125°C operating range-enabling reliable operation in sealed handheld enclosures without forced airflow.
TPS61041DRVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- DC DC Regulator
- Topology:
- Step-Up (Boost)
- Internal Switch(s):
- Yes
- Number of Outputs:
- 1
- Voltage - Supply (Min):
- 1.8V
- Voltage - Supply (Max):
- 6V
- Voltage - Output:
- 28V
- Current - Output / Channel:
- 215mA (Switch)
- Frequency:
- 1MHz
- Dimming:
- PWM
- Applications:
- Backlight
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WSON (2x2)
TPS61041DRVT FAQ
1.How can I place an order for TPS61041DRVT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS61041DRVT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS61041DRVT reliable?
The price and inventory of TPS61041DRVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS61041DRVT is usually 5 days.
3.What payment methods are accepted for TPS61041DRVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS61041DRVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS61041DRVT?
TPS61041DRVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS61041DRVT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS61041DRVT?
For technical support, including TPS61041DRVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS61041DRVT requirements.
6.How does Aetrix verify that TPS61041DRVT is sourced from the original manufacturer or authorized distributors?
All TPS61041DRVT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS61041DRVT meets industry standards.
7.What is the process for return or replacement of TPS61041DRVT?
All TPS61041DRVT units undergo pre-shipment inspection (PSI). If there is an issue with TPS61041DRVT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS61041DRVT part is unused and in its original packaging.
Return procedure for TPS61041DRVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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